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发明名称
摘要
申请公布号
FR2272449(B2)
申请公布日期
1978.06.30
申请号
FR19740039627
申请日期
1974.12.04
申请人
SUMMAGRAPHICS CORP
发明人
分类号
G06F3/041;G06F3/033;G06F3/043;G08C21/00;(IPC1-7):G08C21/00;G06F13/00;G08C9/00;H04N1/00
主分类号
G06F3/041
代理机构
代理人
主权项
地址
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